NHJ-400 Helium Mass Spectrometer Leak Detector Introduction
The NHJ-400 is a fully automatic mobile helium mass spectrometer leak detector with a long volume and superior performance for many industries. Using the principle of helium mass spectrometry and reverse diffusion, using imported molecular pump, 180° non-uniform magnetic field and fully automatic control technology, automatic peak scanning, automatic zero adjustment, automatic calibration and automatic range switching are realized, with fast detection speed and detection. High sensitivity and strong anti-interference ability. Features
1.The unique gas path design improves the pumping speed of the cockroach, shortens the background time of cleaning, and effectively prevents cockroach pollution.
2.Leak detection port: Customized precision filter device can effectively prevent debris particles or copper powder from entering the instrument.
3. Multi-mode function input and output, easy to connect various automation equipment.
4.The machine and the circuit are effectively separated to avoid interference between temperature and electromagnetic field, which makes the leak detector run more stable and reliable.
5.The minimum detectable leak rate is low, the sensitivity is high, and the detection range reaches 11 levels.
6.Large leak detection function: It can pass the preset pressure, when the pumping is empty, the preset value is not reached, and the leak detector automatically alarms.
7.A variety of measurement units are selected, the test data is updated in real time, and the Excel form is directly output.
8. A variety of large leakage protection modes to fully protect the ion source from being oxidized and leaking into the atmosphere.
9.Hand-held remote control unit, unobstructed distance detection up to 150 meters remote control
10.One-button start, automatic zero adjustment, automatic calibration. Technical parameters
Minimum leak detection rate: 5×10-13Pa·m3/s
Leakage display range: 1×10-3 ~ 1×10-13Pa·m3/s
The minimum leak detection rate of the sniffer: 1×10-8Pa·m3/s
Sniffer leak rate display range: 1×10-3 ~ 1×10-9Pa·m3/s
Start-up time: ≤ 2 min
Response time: ≤ 1 S
Leak detection pressure: 1500Pa
Power requirements: 220V±10%/50Hz
Display unit: Pa·m3/s, mbar·l/s, atm·cc/s, ppm
Working environment: temperature 5 ~ 40 ° C, the corresponding humidity ≤ 80%
Weight: ≤80KG
Introduction
The NHJ-400 is a fully automatic mobile helium mass spectrometer leak detector with a long volume and superior performance for many industries. Using the principle of helium mass spectrometry and reverse diffusion, using imported molecular pump, 180° non-uniform magnetic field and fully automatic control technology, automatic peak scanning, automatic zero adjustment, automatic calibration and automatic range switching are realized, with fast detection speed and detection. High sensitivity and strong anti-interference ability.
